Products · Document Viewer

One viewer for PDF, Word and Excel

Open contracts, reports and workbooks in the same fast, familiar screen, right in the user’s browser.

Get startedSee the code
service-agreement.pdf
ViewAnnotateShapesInsertEdit
APPROVED

3

formats: PDF, Word and Excel

2

themes, light and dark

AES

and RC4 encrypted PDFs open

0

uploads: it runs on the device

Features

What Document Viewer does

01

Opens what your users have

  • PDF, including damaged files and encrypted ones (RC4, AES-128, AES-256)
  • Word documents (.docx) laid out into real pages
  • Excel workbooks (.xlsx, .xlsb) in a spreadsheet grid
  • Open from a URL, bytes, a File, or by drag and drop
service-agreement.pdf
ViewAnnotateShapesInsert
APPROVED
02

Reads like a desktop app

  • Zoom levels, fit to width and fit to page
  • Page thumbnails and a floating page navigator
  • Full-text search with every result marked on the page
  • Light and dark themes
03

Draws documents faithfully

  • Vector graphics, gradients, patterns and transparency
  • TrueType, CFF, Type 1, Type 3 and CID fonts
  • JPEG, CCITT and Flate images, masks and blend modes
  • Right-to-left and complex scripts in Word documents
04

Fits into your product

  • Your accent colour and your own header buttons
  • Show only the tools and panels you want
  • Read-only mode for viewing without editing
  • Its styles never clash with your site

At a glance

Everything included

No add-ons and no tiers: every item here ships in the same package, free under MIT.

  • PDF
  • .docx
  • .xlsx
  • .xlsb
  • Zoom
  • Fit width
  • Fit page
  • Single or double page
  • Page-by-page view
  • Thumbnails
  • Page navigator
  • Full-text search
  • Comments panel
  • Light theme
  • Dark theme
  • Read-only mode
  • Your own buttons
  • Accent colour
  • No style clashes
  • Keyboard shortcuts

For developers

The same few lines in JavaScript and .NET

One engine behind both packages, so behaviour and output match on every platform.

Getting started API reference
app.js
const viewer = await createViewer(element, {  document: '/files/handbook.pdf',  theme: 'auto',  accentColor: '#3ecf8e',  initialZoom: 'fitWidth',});

Used in these workflows

Construction & engineeringMark up drawings and specsHealthcare & insuranceForms and records that stay on the deviceSoftware platformsAdd documents to your own product

Works well with

Annotation & Markup

20+ tools, comments and replies

Learn more

Page Tools

Rotate, reorder, insert, merge, flatten

Learn more

Server & Automation

Node.js, .NET, C and the command line

Learn more

Add Document Viewer to your app

Free under the MIT licence, for the browser, Node.js and .NET.

Get startedRead the docs